[automerger skipped] Merge "Use a different key for signing networkpolicy test app." into oreo-mr1-cts-dev am: 4e67a8094e am: 620452f928  -s ours am: ab7977463e  -s ours
am: 34a2b60e0e  -s ours

Change-Id: Ia971ea37f702f890a8c63dc0a66264dec0ea2011
tree: de847d042b4786575ea225c15c65fccd26d4f529
  1. tests/